XML 131 R107.htm IDEA: XBRL DOCUMENT
v3.19.1

Revenue from Contracts with Customers - Additional Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 CAD ($) Customer | Dec. 31, 2017 CAD ($) Customer
Disclosure Of Major Customers [Line Items] |  |
Number of customers | Customer | 1 | 2
Total gross revenue from contracts with customers | $ 17,145 | $ 4,082
Major customer one [memer] |  |
Disclosure Of Major Customers [Line Items] |  |
Total gross revenue from contracts with customers | 2,832 | 530
Major customer two [member] |  |
Disclosure Of Major Customers [Line Items] |  |
Total gross revenue from contracts with customers |  | $ 780
Expected credit losses [member] |  |
Disclosure Of Major Customers [Line Items] |  |
Expected credit losses on receivables from contract with customers | $ 50 |

X
- Definition The amount of expected credit losses on receivables from contract with customers. + References No definition available. + Details
Name: | cron_ExpectedCreditLossesOnReceivablesFromContractWithCustomers
Namespace Prefix: | cron_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of major customers. + References No definition available. + Details
Name: | cron_NumberOfMajorCustomers
Namespace Prefix: | cron_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfMajorCustomersLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 15 -IssueDate 2017-01-01 -Paragraph 113 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2017-03-01&anchor=para_113_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 15 -IssueDate 2017-01-01 -Paragraph 114 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2017-03-01&anchor=para_114&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_RevenueFromContractsWithCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_MajorCustomersAxis=cron_MajorCustomerOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MajorCustomersAxis=cron_MajorCustomerTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis=ifrs-full_TwelvemonthExpectedCreditLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |